[infinispan-issues] [JBoss JIRA] (ISPN-4499) Prevent shadowing user-defined jgroups configuration file

[Martin Gencur (JIRA)]

Martin Gencur created ISPN-4499:
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             Summary: Prevent shadowing user-defined jgroups configuration file
                 Key: ISPN-4499
                 URL: https://issues.jboss.org/browse/ISPN-4499
             Project: Infinispan
          Issue Type: Enhancement
      Security Level: Public (Everyone can see)
          Components: Configuration
    Affects Versions: 7.0.0.Alpha4
            Reporter: Martin Gencur
            Assignee: Martin Gencur


When users create their own JGroups configuration file and name it the same way as default configuration files (jgroups-udp.xml / jgroups-tcp-xml / jgroups-ec2.xml), they might not be visible to the user application as they're shadowed by the default configuration files.

Proposed solution:
* place current jgroups configuration files into META-INF/configs folder
* define order in which the config files are read by class laoder (i.e. first scan user application, then path under META-INF/configs)
* when Infinispan is started, log the path to the configuration file used, e.g.:
{code}
2014-06-12 06:45:02,871 [thread-name] INFO  [package-name] Using JGroups configuration file 'jar:META-INF/example_configurations/jgroups/udp.xml'
2014-06-12 06:45:02,871 [thread-name] INFO  [package-name] Using JGroups configuration file 'file:/app_home/config/jgroups-udp.xml'
{code}



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